Multiple building block lifting device

摘要

A lifting device that simultaneously lifts a plurality of retaining wall blocks initially oriented in a triangular configuration on a pallet and allows them to be easily re-aligned in a linear configuration on a retaining wall. The lifting device comprises two pivoting lateral extending side arms with clamping units attached to their distal ends. Attached to the main planar frame is a central clamping unit. Each clamping unit includes an insert member that inserts into a large, vertically aligned hole formed in the block. When the clamping units are inserted into the hole and activated, three triangular aligned sets of blocks on a pallet may be lifted. The side arms are designed to pivot rearward so that the front surfaces of the blocks are longitudinally aligned and the blocks are positioned in a side-by-side manner. Once properly re-aligned, the lifting device is lowered so that the three blocks are simultaneously placed over the top row of the retaining wall. The gripping members are then relaxed so that the blocks are released. The side arms then automatically align in their original positions so that they may be used to connect to another set of triangularly aligned blocks on the pallet.